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[libc][math][c++23] Add scalb{,l}nbf16 math functions #155569

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Merged
merged 16 commits into from
Aug 28, 2025
Merged

[libc][math][c++23] Add scalb{,l}nbf16 math functions #155569

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64121d4
feat: implement {canonicalize,iscanonical,fdim,copysign,issignaling}b…
krishna2803 Aug 27, 2025
ff3915c
chore: update CMakeLists
krishna2803 Aug 27, 2025
cbdfc66
chore: add smoke tests for {canonicalize,iscanonical,fdim,copysign,is…
krishna2803 Aug 27, 2025
170f9b2
fix: add 0 to T cast
krishna2803 Aug 27, 2025
ceb8818
chore: update entrypoints
krishna2803 Aug 27, 2025
99f5872
docs: add {canonicalize,iscanonical,fdim,copysign,issignaling}bf16 ma…
krishna2803 Aug 27, 2025
204df34
feat: implement totalorder{,mag}bf16 math functions
krishna2803 Aug 27, 2025
06ca9a3
chore: add smoke tests for totalorder{,mag}bf16 math functions
krishna2803 Aug 27, 2025
f83bce4
chore: update entrypoints
krishna2803 Aug 27, 2025
4396ea9
docs: add totalorder{,mag}bf16 math functions
krishna2803 Aug 27, 2025
b633a76
feat: implement scalb{,l}nbf16 math functions
krishna2803 Aug 27, 2025
e99d5c2
chore: add smoke tests for scalb{,l}nbf16 math functions
krishna2803 Aug 27, 2025
a7187f9
chore: update entrypoints
krishna2803 Aug 27, 2025
5ff2ddc
docs: add scalb{,l}nbf16 math functions
krishna2803 Aug 27, 2025
68556bd
chore: add FLT_RADIX check in scalb{,l}nbf16 function definitions
krishna2803 Aug 27, 2025
0d67e4e
Merge branch 'main' into users/krishna2803/scalbnbf16
krishna2803 Aug 28, 2025
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9 changes: 9 additions & 0 deletions libc/config/baremetal/aarch64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -772,8 +772,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -790,6 +793,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -809,9 +814,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
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9 changes: 9 additions & 0 deletions libc/config/baremetal/arm/entrypoints.txt
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -775,8 +775,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -793,6 +796,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -812,9 +817,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
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9 changes: 9 additions & 0 deletions libc/config/baremetal/riscv/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -775,8 +775,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -793,6 +796,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -812,9 +817,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
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9 changes: 9 additions & 0 deletions libc/config/darwin/aarch64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -605,8 +605,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -623,6 +626,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -642,9 +647,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/darwin/x86_64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -248,8 +248,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -266,6 +269,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -285,9 +290,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/gpu/amdgpu/entrypoints.txt
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -631,8 +631,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -649,6 +652,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -668,9 +673,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/gpu/nvptx/entrypoints.txt
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -633,8 +633,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -651,6 +654,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -670,9 +675,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/aarch64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,8 +860,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -878,6 +881,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -897,9 +902,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/arm/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -475,8 +475,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -493,6 +496,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -512,9 +517,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/riscv/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -878,8 +878,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -896,6 +899,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -915,9 +920,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/x86_64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -911,8 +911,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -929,6 +932,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -948,9 +953,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
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